Hello, I need some help. Today I have established that the rear right wheel can only be turned scwer, parallel to this the left one lighter (but also not quite easy). Besides, it is that the wheel screw is totally hot after the ride. Furthermore, the hand brake can be pulled up to the stop, so to speak. I would like to know now whether this is a hand brake problem? And what can I do myself to find the exact error and I have to say that the error with the handbrake has been in place for months. However, I noticed that with the wheel and the hotness of the bike I only noticed today.Before I checked nothing in this way. Thank you very much. Günter